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发明名称
Lawn mower sharpener
摘要
申请公布号
US1817331(A)
申请公布日期
1931.08.04
申请号
US19280262731
申请日期
1928.03.19
申请人
WILSON BINGHAM T
发明人
WILSON BINGHAM T.
分类号
B24B3/42
主分类号
B24B3/42
代理机构
代理人
主权项
地址
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